高铬合金耐磨铸件空淬最佳工艺参数研究  

Study on the Optimum Process Parameters of the High Chromium Alloy Wear-Resistant Castings Air Quenching

作　　者：赵韩[1] 朱仁胜[1] 刘四洋[1] 孙程[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《机械设计与制造》2016年第3期22-25,共4页Machinery Design & Manufacture

基　　金：马鞍山市科技计划项目(MASKJ001)

摘　　要：运用DEFORM-HT对高铬合金耐磨铸件耐磨钢球进行了空淬仿真模拟,研究了不同空淬工艺参数(表面对流换热系数、空淬时间、环境温度)对空淬试件硬度的影响,找到了不同空淬工艺参数对试件硬度的影响规律。再对模拟计算数据采用逐步回归分析法建立硬度关于工艺参数的最优回归方程,从而定量地分析各参数对高铬合金耐磨铸件硬度的影响,并且可根据硬度要求确定最佳工艺参数。最后通过实验验证,计算结果和实验结果相符,说明所得最优回归方程真实可靠,为工程实践提供依据。The air quenching process of high-chromium alloy wear-resistant casting mold was simulated by DEFORM-HT, and the purpose of this was to find the influence of air quenching process parameters （heat transfer coefficient, the time of air quenching, environment temperature to casting mold. The effect of different process parameters on hardness was found. Analyzed the simulation data by using stepwise regression analysis, then established the optimal regression equation of hardness, analyzed the effects of various parameters on the hardness, found the optimum process parameters that met the requirement of hardness. Compared the calculation results and test value, illustrating that the optimal regression equation is true and reliable, which provides the operational basis for engineering practice.

关 键 词：空淬 有限元 工艺参数 逐步回归 

分 类 号：TH16[机械工程—机械制造及自动化] TG156.33[金属学及工艺—热处理]